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Measuring the VIPERS galaxy power spectrum at $z\sim1$

Published online by Cambridge University Press:  12 October 2016

Stefano Rota ,
Julien Bel ,
Ben Granett  and
Luigi Guzzo
Stefano Rota
Affiliation:
INAF - Osservatorio astronomico di Brera, Via Bianchi 46, I-23807, Merate (LC), Italy email: stefano.rota@brera.inaf.it
Julien Bel
Affiliation:
INAF - Osservatorio astronomico di Brera, Via Bianchi 46, I-23807, Merate (LC), Italy email: stefano.rota@brera.inaf.it
Ben Granett
Affiliation:
INAF - Osservatorio astronomico di Brera, Via Bianchi 46, I-23807, Merate (LC), Italy email: stefano.rota@brera.inaf.it
Luigi Guzzo
Affiliation:
INAF - Osservatorio astronomico di Brera, Via Bianchi 46, I-23807, Merate (LC), Italy email: stefano.rota@brera.inaf.it
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Abstract

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The VIMOS Public Extragalactic Redshift Survey [VIPERS, Guzzo et al. 2014] is using the VIMOS spectrograph at the ESO VLT to measure redshifts for ∼ 100,000 galaxies with IAB < 22.5 and 0.5 < z < 1.2, over an area of 24 deg2 (split over the W1 and W4 fields of CFHTLS). VIPERS currently provides, at such redshifts, the best compromise between volume, number of galaxies and dense spatial sampling. We present here the first estimate of the power spectrum of the galaxy distribution, P(k), at redshifts z ∼ 0.75 and z ∼ 1, obtained from the ∼ 55,000 redshifts of the PDR-1 data release. We discuss first constraints on cosmological quantities, as the matter density and the baryonic fraction, obtained for the first time at an epoch when the Universe was about half its current age.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S308: The Zeldovich Universe: Genesis and Growth of the Cosmic Web , June 2014 , pp. 169 - 171
Copyright
Copyright © International Astronomical Union 2016 

References

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